Depending on the processed material from each drill must be properly sharpened. To verify the correct angle will help a specially prepared square plate of copper or aluminium with a thickness of 1 mm.
To become operational protractor enough to cut it cut, as shown in the picture: a large cutout at an angle of 120 degrees, the other half is 60 degrees and the surviving corner of a square is 90.
Recommend to read
DECORATE WITHOUT PAINT
Any owner can independently, without men's assistance, become familiar to update kitchen cabinets, bringing in solid color his panels any decorative ornament. And not resorting to dyes,...
HIMSELF HOLDS
Hang a hook or bracket to a hollow wall (for example, sheathed with plastic or plywood) is always a problem: fixture does not hold in this place is quickly loosened and popping up....
